git status

提示：
		On branch master
		No commits yet
		nothing to commit (create/copy files and use "git add" to track)

vim goo.txt
git status

提示：
	 on branch master
	 no commits yet
	 untracked file:
	 (use "git add <file>..." to include in what will be committed)
	good.txt
	nothing added to commit but untracked files present(use "git add" to track) 

git add good.txt

提示：
	warning:LF will be replaced by CRLF in good.txt.
	The file wile have its original line endings in your working directory

git status

提示：
	 on branch master
	no commits yet
	Changes to be committed:
	(use "git rm --cached <file>..." to unstage)
	new file:   good.txt

git commit good.txt

提示：
	 warning: LF will be replaced by CRLF in good.txt.
	The file will have its original linne endings in your working diewctory.
	 hint: Waiting for your editor to close the file...

自动进入了vim编辑器

My firest commit.new file good.txt

提示：
	Please enter the commit message for your chanses. Lines starting
	wite '#' will be ignored, and an empty message aborts the commit.
	 On branch master
	Initial commit
	Changes to be committed:
	    new   file:   good.txt

:set nu
#显示行号

i
#进入插入模式

:wq
#保存退出

#[master (root-commit) 744e2e4] My first commit.new file good.txt
#1 file changed, 3 insertions(+)
#create mode 100644 good.txt

Cat good.txt

内容:
	aaaaaaa
	bbbbbbb
	ccccccc

git status

#On branch mastrer
#nothing to commit,, working tree clean